Abstract
The present study investigated the percepts of bistable apparent motion in the conditions that the stimulus could induce translation-or rotation-motion. We used the Ternus display that can produce the bistable percepts of group motion and element motion. In experiment 1, correspondence matching between central elements across frames in a Ternus display yields the percept of rotation. According to the one-to-one correspondence principle, though the percept of rotation for central elements should not be seen when group motion is perceived, group motion and rotation were perceived simultaneously in the ISI0ms condition. This percept in violation of the one-to-one correspondence was not produced by the stimuli consisting of the same type of motions (experiment 2). These results suggest that the correspondence matching yielding rotation may differ in the maintenance of element identity from the correspondence yielding translation (phenomenal identities accorded to the correspondence in translation), and that the entire stimulus percepts appear as an integrated form of those different levels of perceptual processing.
